Clamp Levers

About Clamp Levers

Clamp levers are machine elements which allow efficient tightening and loosening of screws by turning the lever, without the use of tools.
Their best feature is the ability to work even without rotating the lever 360°: just pull up the lever to release the threaded serration engagement and set it free (the screw will not turn even if the lever is rotated).
Screws can be tightened in spaces with narrow ranges of movement, and lever positions can also be changed after tightening to keep them out of the way.
NBK offers variations on lever part length and angle, shape, and material, as well as thread part type, material and so on, with clamp levers offering ever more unique functions available as standard.

Selection Conditions

Select ColorsYW

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Part Name	Male Screw,Plastic Clamp Lever - Miniature Type	Male Screw,Plastic Clamp Lever - Miniature Type	Female Screw,Plastic Clamp Lever - Miniature Type	Female Screw,Plastic Clamp Lever - Miniature Type	Male Screw - with Push Button,Clamp Lever - Miniature Type	Male Screw - with Push Button,Clamp Lever - Miniature Type	Female Screw - with Push Button,Clamp Lever - Miniature Type	Female Screw - with Push Button,Clamp Lever - Miniature Type	Miniature Plastic Clamp Levers - Spring Washer Integrated Type
Part Number	LECM	LECMS	LECF	LECFS	LECM-C	LECMS-C	LECF-C	LECFS-C	LECM-W
Feature	Mini Lightweight Giving care to Global Warming	Mini Lightweight Giving care to Global Warming	Mini Lightweight Screw is made from Stainless Steel Giving care to Global Warming	Mini Lightweight Screw is made from Stainless Steel Giving care to Global Warming	Mini Lightweight Easy Operation with Button Giving Care to Global Warming	Mini Lightweight Easy Operation with Stainless Button Giving Care to Global Warming	Mini Lightweight Easy Operation with Button Giving Care to Global Warming	Mini Lightweight Easy Operation with Stainless Button Giving Care to Global Warming	Integrated Spring Washers Miniature Lightweight With Consideration for Global Warming
Shape	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short
Type	Male Screw	Male Screw	Female Screw	Female Screw	Male Screw	Male Screw	Female Screw	Female Screw	Male Screw
Lever Part Material	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic
Thread Part Material	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Steel Ferrosoferric Oxide Film (Black)	Steel Ferrosoferric Oxide Film (Black)	Steel Ferrosoferric Oxide Film (Black)	Steel Ferrosoferric Oxide Film (Black)
Thread Size	M3	M3	M3	M3	M3	M3	M3	M3	M5
Surface	YW	YW	YW	YW	YW	YW	YW	YW	YW
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	LECM-3 LECM-4 LECM-5 LECM-6	LECMS-3 LECMS-4 LECMS-5 LECMS-6	LECF-3 LECF-4 LECF-5 LECF-6	LECFS-3 LECFS-4 LECFS-5 LECFS-6	LECM-3-C LECM-4-C LECM-5-C LECM-6-C	LECMS-3-C LECMS-4-C LECMS-5-C LECMS-6-C	LECF-3-C LECF-4-C LECF-5-C LECF-6-C	LECFS-3-C LECFS-4-C LECFS-5-C LECFS-6-C	LECM-5-W LECM-6-W

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Part Name	Miniature Plastic Clamp Levers - Spring Washer Integrated Type	Miniature Plastic Clamp Levers - Plain Washer Integrated Type	Miniature Plastic Clamp Levers - Plain Washer Integrated Type	Miniature Plastic Clamp Levers with Flat Washers for Slotted Holes	Miniature Plastic Clamp Levers with Flat Washers for Slotted Holes	Male Screw,Plastic Clamp Lever	Male Screw,Plastic Clamp Lever	Female Screw,Plastic Clamp Levers	Female Screw,Plastic Clamp Lever
Part Number	LECMS-W	LECM-LW	LECMS-LW	LECM-LWP	LECMS-LWP	LUDM	LUDMS	LUDF	LUDFS
Feature	Integrated Spring Washers Miniature Lightweight Stainless Steel Threads With Consideration for Global Warming	Integrated Plain Washers Miniature Lightweight With Consideration for Global Warming	Integrated Plain Washers Miniature Lightweight Stainless Steel Threads With Consideration for Global Warming	With Flat Washers for Slotted Holes Miniature Lightweight With Consideration for Global Warming	With Flat Washer for Slotted Holes Miniature Lightweight Stainless Steel Threads With Consideration for Global Warming	Universal Design	Universal Design Screw is made from Stainless Steel	Universal Design	Universal Design Screw is made from Stainless Steel
Shape	Standard Short	Standard Short	Standard Short	Standard Short	Standard Short	T-shaped	T-shaped	T-shaped	T-shaped
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Female Screw	Female Screw
Lever Part Material	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic
Thread Part Material	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel
Thread Size	M5	M5	M5	M5	M5	M3	M3	M3	M3
Surface	YW	YW	YW	YW	YW	YW	YW	YW	YW
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	LECMS-5-W LECMS-6-W	LECM-5-LW20 LECM-6-LW20	LECMS-5-LW20 LECMS-6-LW20	LECM-5-LWP20 LECM-6-LWP20	LECMS-5-LWP20 LECMS-6-LWP20	LUDM-52-3 LUDM-52-4 LUDM-52-5 LUDM-52-6 LUDM-67-10 LUDM-67-6 LUDM-67-8 LUDM-78-10 LUDM-78-12 LUDM-78-8 LUDM-93-12	LUDMS-52-3 LUDMS-52-4 LUDMS-52-5 LUDMS-52-6 LUDMS-67-6 LUDMS-67-8 LUDMS-78-10 LUDMS-78-8 LUDMS-93-12	LUDF-52-3 LUDF-52-4 LUDF-52-5 LUDF-52-6 LUDF-67-6 LUDF-67-8 LUDF-78-10 LUDF-78-8 LUDF-93-12	LUDFS-52-3 LUDFS-52-4 LUDFS-52-5 LUDFS-52-6 LUDFS-67-6 LUDFS-67-8 LUDFS-78-10 LUDFS-78-8 LUDFS-93-12

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Part Name	Plastic Clamp Levers - Spring Washer Integrated Type	Plastic Clamp Levers - Spring Washer Integrated Type	Plastic Clamp Levers - Plain Washer Integrated Type	Plastic Clamp Levers - Plain Washer Integrated Type	Plastic Clamp Levers with Flat Washers for Slotted Holes	Plastic Clamp Levers with Flat Washers for Slotted Holes
Part Number	LUDM-W	LUDMS-W	LUDM-LW	LUDMS-LW	LUDM-LWP	LUDMS-LWP
Feature	Integrated Spring Washers Universal Design	Integrated Spring Washers Universal Design Stainless Steel Threads	Integrated Plain Washers Universal Design	Integrated Plain Washers Universal Design Stainless Steel Threads	With Flat Washers for Slotted Holes Universal Design	With Flat Washers for Slotted Holes Universal Design Stainless Steel Threads
Shape	T-shaped	T-shaped	T-shaped	T-shaped	T-shaped	T-shaped
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Lever Part Material	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic
Thread Part Material	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel	Steel Ferrosoferric Oxide Film (Black)	Stainless Steel
Thread Size	M5	M5	M5	M5	M5	M5
Surface	YW	YW	YW	YW	YW	YW
CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	LUDM-52-5-W LUDM-52-6-W LUDM-67-8-W LUDM-78-10-W	LUDMS-52-5-W LUDMS-52-6-W LUDMS-67-8-W LUDMS-78-10-W	LUDM-52-5-LW20 LUDM-52-6-LW20 LUDM-67-8-LW25 LUDM-78-10-LW30	LUDMS-52-5-LW20 LUDMS-52-6-LW20 LUDMS-67-8-LW25 LUDMS-78-10-LW30	LUDM-52-5-LWP20 LUDM-52-6-LWP20 LUDM-67-8-LWP25 LUDM-78-10-LWP30	LUDMS-52-5-LWP20 LUDMS-52-6-LWP20 LUDMS-67-8-LWP25 LUDMS-78-10-LWP30

Latest

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Introducing usage methods for clamp levers with flat washers for slotted holes that prevent falling and rotation and enable position checking.

Only takes a minute to understand! How to Use Clamp Levers.

A clear explanation via video of how to use clamp levers correctly.

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Helpful Resources

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All you need to know about the roles and types of washers!

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Handle Shaft Hole Processing Service

Scale Plate・Scale Sticker Cutting Service

No. 7: SEMI Standards

No. 6: Thermal Cycling

No. 5: Solving common problems inside equipment

Screws that will not affect communication are required 【Safety Measures/Precautionary Measures】

Tools that can be used even in locations where magnetization must be avoided are required【Workability/Maintenance】

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What are clamp levers? Here we explain the characteristics and usage methods that help streamline screw tightening!

No. ９: Increasing Throughput

No. 8: Preventing Part Fall-out

No. 6: Thermal Cycling

No. 5: Solving common problems inside equipment

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Screws that will not affect communication are required 【Safety Measures/Precautionary Measures】

No. 2: Vacuum environments

Hints for correctly using NBK products: Retractable revolving grip

Countermeasures for screw loosening are required 【Safety / precautionary measures】

Machining marks must be prevented 【Energy-saving / reduced work-hours】

Screws must be protected from chemicals 【Energy-saving / reduced work-hours】

Improvement points for FA Devices【Control Design】

Solving common issues with Machine Tools（Machining Center）

Improvement points for FA Devices【Unit Design】

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Small Diameter Screws: M0.6 (S0.6) to M2.6 Lineup

What are low profile screws? Find advantages, disadvantages, and usage examples explained here!

What are clamp levers? Here we explain the characteristics and usage methods that help streamline screw tightening!

No. ９: Increasing Throughput

No. 6: Thermal Cycling

Flexus【Muilti-Functional Machined Slotted Springs】

NBK SPECIAL SCREWS

Designs and Examples of What NBK Can Create

Ball Rollers : Characteristics

Custom made

No. 6: Thermal Cycling

No. 5: Solving common problems inside equipment

Collaboration Webinar: The Best Solutions for Shortening a Positioning Time by Using NBK's Couplings and SANYO DENKI's Servo Motors

The Optimized Coupling ”XG Family"（Teaser ver.）

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Small Diameter Screws: M0.6 (S0.6) to M2.6 Lineup

What are low profile screws? Find advantages, disadvantages, and usage examples explained here!

All you need to know about the roles and types of washers!

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Jaw Type Couplings Lineup List

Small Diameter Screws: M0.6 (S0.6) to M2.6 Lineup

What are low profile screws? Find advantages, disadvantages, and usage examples explained here!

All you need to know about the roles and types of washers!

What are clamp levers? Here we explain the characteristics and usage methods that help streamline screw tightening!

No. ９: Increasing Throughput

Vol.1　Thinking about "Galling and Seizing"

Vol.2　Explaining the Vocabulary of Screws

Vol.3　Functional Screw Surface Treatments Are Not Just for Corrosion Resistance

Vol.4　What are washers used for?

Vol.5　Varieties of SUS Screws